importmatplotlibasmplimportmatplotlib.pyplotaspltnorm=mpl.colors.LogNorm()cmap=mpl.cm.get_cmap("viridis")fig,ax=plt.subplots()pts=mpl.cm.ScalarMappable(norm=norm,cmap=cmap)pts.set_array([0.1,0.9])plt.colorbar(pts)

---------------------------------------------------------------------------TypeError                                 Traceback (most recent call last)<ipython-input-1-adec5b1bbfd1> in <module>      6 pts = mpl.cm.ScalarMappable(norm=norm, cmap=cmap)      7 pts.set_array([0.1, 0.9])----> 8 plt.colorbar(pts)~/rms-python/envs/mpl34/lib/python3.7/site-packages/matplotlib/pyplot.py in colorbar(mappable, cax, ax, **kw)   2354                                'an image (with imshow) or a contour set ('   2355                                'with contourf).')-> 2356     ret = gcf().colorbar(mappable, cax=cax, ax=ax, **kw)   2357     return ret   2358~/rms-python/envs/mpl34/lib/python3.7/site-packages/matplotlib/figure.py in colorbar(self, mappable, cax, ax, use_gridspec, **kw)   1174                              'panchor']   1175         cb_kw = {k: v for k, v in kw.items() if k not in NON_COLORBAR_KEYS}-> 1176         cb = cbar.Colorbar(cax, mappable, **cb_kw)   1177   1178         self.sca(current_ax)~/rms-python/envs/mpl34/lib/python3.7/site-packages/matplotlib/colorbar.py in __init__(self, ax, mappable, **kwargs)   1170         # even if mappable.draw has not yet been called.   1171         if mappable.get_array() is not None:-> 1172             mappable.autoscale_None()   1173   1174         self.mappable = mappable~/rms-python/envs/mpl34/lib/python3.7/site-packages/matplotlib/cm.py in autoscale_None(self)    474         if self._A is None:    475             raise TypeError('You must first set_array for mappable')--> 476         self.norm.autoscale_None(self._A)    477         self.changed()    478~/rms-python/envs/mpl34/lib/python3.7/site-packages/matplotlib/colors.py in autoscale_None(self, A)   1541     def autoscale_None(self, A):   1542         # docstring inherited.-> 1543         super().autoscale_None(np.ma.array(A, mask=(A <= 0)))   1544   1545TypeError: '<=' not supported between instances of 'list' and 'int'